I watched Nighttrain to Lisbon (mostly because I learned that my stepbrother was involved in one of the songs via Trio Fado) which had some nice pictures of Lisbon and some interesting aspects of living under the fascist regime of Salazar and his secret police. A terrible thing. The aspects I did not like about the movie:
The Swiss and the Portuguese speak English—and just recently having seen La grande vadrouille where you need to understand French, German and English in order to get all the jokes, this pained me. I felt the Portuguese names were getting butchered. Why did they not use local actors and provide subtitles?
I felt the movie failed the Bechdel test: The women seemed to be either objects in the possession of men—to be fought over—or listening to the men in rapt attention with an appropriately bent neck.
I also haven’t read the book.
In short, if you want to see some pictures of Lisbon and get an idea of the fascist regime in Portugal at the time, I recommend the movie.